The surface must be clean, dry and free from loose materials, oil, grease and other.
被涂表面必须清洁、干燥、无油脂或其他油污、无松散涂层。
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The raw materials are struck over and over until they become loose.
不断击打原材料直到他们变得松散。
应用推荐
模块上移
模块下移
不移动